28028352460762 has 4 divisors (see below), whose sum is σ = 42042528691146. Its totient is φ = 14014176230380.

The previous prime is 28028352460721. The next prime is 28028352460769. The reversal of 28028352460762 is 26706425382082.

It is a Cunningham number, because it is equal to 5294181²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28028352460761 + 1 = 5294181^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (28028352460769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7007088115189 + ... + 7007088115192.

Almost surely, 2^{28028352460762} is an apocalyptic number.

28028352460762 is a deficient number, since it is larger than the sum of its proper divisors (14014176230384).

28028352460762 is a wasteful number, since it uses less digits than its factorization.

28028352460762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014176230383.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 28028352460762 in words is "twenty-eight trillion, twenty-eight billion, three hundred fifty-two million, four hundred sixty thousand, seven hundred sixty-two".